<template>
  <div class="Child">
    <h3>我是Child组件(子)</h3>
    <Son></Son>
  </div>
</template>

<script>
import Son from './Son.vue'
export default {
  name: "App",
  components: {
    Son
  },
  setup() {
  }
};
</script>
 <style>
 .Child{
   background-color: skyblue;
   padding: 10px;
 }
 </style>